Conocimiento y uso del ultraportátil de la Junta de Andalucía y del software libre en la Educación Primaria. Un estudio de caso

El presente artículo trata de exponer un adelanto de un proyecto de investigación que se está llevando a cabo en la provincia de Huelva, exponiendo algunas de las conclusiones a las que se han llegado a cabo. El proyecto pretende conocer, a partir de un estudio de caso de un centro de Huelva, el conocimiento y uso del profesorado y del alumnado del software libre, así como los ultraportátiles entregados por la Junta de Andalucía a unos y otros, una de las más importantes inversiones realizadas por la Consejería. Los primeros resultados dejan entrever el lento pero progresivo aumento del uso de los citados ultraportátiles, así como un conocimiento limitado del enorme abanico de herramientas libres educativas. Se ha decidido publicar este avance de resultados previa finalización del estudio debido a su importancia, con el fin de invitar a toda la comunidad educativa a continuar con estudios similares y entre todos analizar el impacto real de las TIC en nuestras aulas.This article presents a preview of a research project being carried out in the province of Huelva, exposing some of the conclusions based on the development of the unfinished research. The project tries to deepening, from a case study on a specific school, about knowledge and use of the teachers and students of the free software, and netbooks handed out by the Junta de Andalucía to one another, one the most significant investments made by the Department. The initial results hint at the slow but progressive increase in the use of those ultraportables, and a limited knowledge of the huge range of free educational tools. It has been decided to publish this preliminary study, before to complete of the study because its importance, to invite the entire school community to continue with similar studies and together analyze the real impact of ICT in our classrooms

Knowledge and use of netbook of Junta de Andalucía and of free software in the primary school. A case study

El presente artículo trata de exponer un adelanto de un proyecto de investigación que se está llevando a cabo en la provincia de Huelva, exponiendo algunas de las conclusiones a las que se han llegado a cabo. El proyecto pretende conocer, a partir de un estudio de caso de un centro de Huelva, el conocimiento y uso del profesorado y del alumnado del software libre, así como los ultraportátiles entregados por la Junta de Andalucía a unos y otros, una de las más importantes inversiones realizadas por la Consejería. Los primeros resultados dejan entrever el lento pero progresivo aumento del uso de los citados ultraportátiles, así como un conocimiento limitado del enorme abanico de herramientas libres educativas. Se ha decidido publicar este avance de resultados previa finalización del estudio debido a su importancia, con el fin de invitar a toda la comunidad educativa a continuar con estudios similares y entre todos analizar el impacto real de las TIC en nuestras aulas.This article presents a preview of a research project being carried out in the province of Huelva, exposing some of the conclusions based on the development of the unfinished research. The project tries to deepening, from a case study on a specific school, about knowledge and use of the teachers and students of the free software, and netbooks handed out by the Junta de Andalucía to one another, one the most significant investments made by the Department. The initial results hint at the slow but progressive increase in the use of those ultraportables, and a limited knowledge of the huge range of free educational tools. It has been decided to publish this preliminary study, before to complete of the study because its importance, to invite the entire school community to continue with similar studies and together analyze the real impact of ICT in our classrooms

Existencialismo y lucha interna en la obra literaria de Kenzaburo Oé: una cuestión personal

A lo largo del presente trabajo realizaremos un análisis sobre el planteamiento existencial que expone Kenzaburo Oé en su obra Una cuestión personal. Este planteamiento, como veremos, lo hará a través de la figura protagonista de la novela, Bird, invitando al lector a la reflexión sobre qué podría o debería hacer ante el nacimiento de un hijo discapacitado.Throughout the present paper we will make an analysis about the existential approach that Kenzaburo Oé exposes in his work: A personal Matter. This approach, as we will see, he will do so through the protagonist of the novel, Bird, inviting to the reader to reflect about what he could or should do with the birth of a disabled child.Ayuda de Formación de Profesorado Universitario (FPU-2016), concedida por el Ministerio de Educación, Cultura y Deporte del Gobierno de España

Forecasting Food Price Inflation in Developing Countries with Inflation Targeting Regimes: the Colombian Case

Many developing countries are adopting inflation targeting regimes to guide monetary policy decisions. In such countries the share of food in the consumption basket is high and policy makers often employ total inflation (as opposed to core inflation) to set inflationary targets. Therefore, central banks need to develop reliable models to forecast food inflation. Our literature review suggests that little has been done in the construction of models to forecast short-run food inflation in developing countries. We develop a model to improve short-run food inflation forecasts in Colombia. The model disaggregates food items according to economic theory and employs Flexible Least Squares given the presence of structural changes in the inflation series. We compare the performance of this new model to current models employed by the central bank. Next, we apply econometric methods to combine forecasts from alternative models and test whether such combination outperforms individual models. Our results indicate that forecasts can be improved by classifying food basket items according to unprocessed, processed and food away from home and by employing forecast combination techniques.Food Inflation, Time Series,

On the Analysis of the Contact Conditions in Temporomandibular Joint Prostheses

Temporomandibular joint replacement (TMJR) is a complex surgical procedure in which the artificial joints available must assure the anatomical reconstruction and guarantee a good range of the natural temporomandibular joint (TMJ) movements. With this aim, different types of TMJ prostheses, including the stock prosthetic system and custom-made prostheses, are being currently implanted. Although temporomandibular joint replacements (TMJRs) are expected to accomplish their function during a number of years, they might actually fail and need to be replaced. This paper analyzes different design factors affecting the contact stress distributions within the TMJ prosthesis interface, which are consequently involved in their deterioration and final failure of the prosthetic device. With this purpose, a numerical model based on finite elements has been carried out in order to evaluate the stress states attained in different prosthesis configurations corresponding to general types of TMJ prostheses. On the other hand, the actual degradation of resected implants has been evaluated via optical microscopy. The linkage between the numerical simulations performed and experimental evidence allowed the authors to establish the different wear and damage mechanisms involved in the failure of stock TMJ prostheses. Indeed, the results obtained show that the contact stresses at the interface between the mandible and the glenoid fossa components play a key role in the failure process of the TMJR devices

Experiments and Modelling of Automotive Turbochargers under Unsteady Conditions

The current global scenario, in which an ever increasing population with an ever growing transportation needs is coupled with a reduction in the fossil fuel production and increasing human-made pollution derived problems, leads automotive engine manufacturers to constant struggles for fuel consumption and emission reductions while keeping engine performance. One-dimensional simulation codes have become a key tool towards these objectives, but require continued accuracy refinements. Phenomena that were previously thought of a limited importance and could be extremely easily modelled now require the development of new methods to be accounted for. Among these phenomena are the turbocharger mechanical losses and the turbine behaviour under highly pulsating boundary conditions. This work is focused on the improvement of current one-dimensional models, for both mechanical losses prediction and high frequency pulsating flow turbine performance. After reviewing the state-of-the-art in experimental measurement and fast simulation of automotive turbochargers, this work presents first a experimental study of several turbochargers working under both steady-state and unsteady operating conditions, focusing on the general performance of the turbine and the losses in the power transmission between it and the compressor, even including internal pressure measurements in one of the tested units. All the measurements are corrected due to heat transfer, getting the purely adiabatic behaviour. Furthermore, a CFD simulation campaign of a radial turbine has been performed, thus obtaining a detailed description of its internal behaviour under highly pulsating flow. In the light of both the experimental and CFD-simulated results, a quasi-steady mechanical losses and a quasi-bidimensional turbine model have been developed. Both models have been validated using all the experimental and simulated data, proving a prediction accuracy improvements from the results of previous methods. The mechanical losses model offers a clear advantage over the usual practice of using a constant mechanical efficiency value for correcting the manufacturer’s turbocharger map, whereas the turbine model has demonstrated potential for turbine map extrapolation and has improved the instantaneous results over classic onedimensional turbine volute models for frequencies higher than 1000 Hz. Both models have been developed trying to keep a reduced computational cost, ensuring to exploit the specific characteristics of the processors where they are going to be run.García-Cuevas González, LM. (2014). Experiments and Modelling of Automotive Turbochargers under Unsteady Conditions [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/48458TESI

Hypercube algorithms on mesh connected multicomputers

A new methodology named CALMANT (CC-cube Algorithms on Meshes and Tori) for mapping a type of algorithm that we call CC-cube algorithm onto multicomputers with hypercube, mesh, or torus interconnection topology is proposed. This methodology is suitable when the initial problem can be expressed as a set of processes that communicate through a hypercube topology (a CC-cube algorithm). There are many important algorithms that fit into the CC-cube type. CALMANT is based on three different techniques: (a) the standard embedding to assign the processes of the algorithm to the nodes of the mesh multicomputer; (b) the communication pipelining technique to increase the level of communication parallelism inherent in the CC-cube algorithms; and (c) optimal message-scheduling algorithms proposed in this work in order to avoid conflicts and minimizing in this way the communication time. Although CALMANT is proposed for multicomputers with different interconnection network topologies, the paper only focuses on the particular case of meshes.Peer ReviewedPostprint (published version

A study of the communication cost of the FFT on torus multicomputers

The computation of a one-dimensional FFT on a c-dimensional torus multicomputer is analyzed. Different approaches are proposed which differ in the way they use the interconnection network. The first approach is based on the multidimensional index mapping technique for the FFT computation. The second approach starts from a hypercube algorithm and then embeds the hypercube onto the torus. The third approach reduces the communication cost of the hypercube algorithm by pipelining the communication operations. A novel methodology to pipeline the communication operations on a torus is proposed. Analytical models are presented to compare the different approaches. This comparison study shows that the best approach depends on the number of dimensions of the torus and the communication start-up and transfer times. The analytical models allow us to select the most efficient approach for the available machine.Peer ReviewedPostprint (published version

The Americans and Realist Spy Television: The Contemporary Relevance of an Apparently Outdated Genre.

El cine de espías, sobre todo en su rama más realista, es un género que tuvo su auge en los años cercanos a la llamada guerra fría y que a primera vista parecería no tener ninguna conexión con la sociedad actual. El objetivo de este trabajo es analizar y señalar como las características de este género específico, aparecen actualizadas y adaptadas en la serie The Americans. El análisis apunta a que la suma de sus características clásicas más la renovación del género, lo convierten en el vehículo adecuado para transmitir las inquietudes que el individuo contemporáneo tiene en relación a los conflictos que se presentan al intentar compaginar su vida privada y familiar con las exigencias de una sociedad que cada vez demanda más a sus ciudadanos

A Fuzzy Inference Model Based on an Uncertainty Forward Propagation Approach

The management of uncertainty and imprecision is becoming more and more important in knowledge-based systems. Fuzzy logic provides a systematic basis for representing and inferring with this kind of knowledge. This paper describes an approach for fuzzy inference based on an uncertainty forward propagation method and a change in the granularity of the elements involved. The proposed model is able to handle very general kinds of facts and rules, and it also verifies the most usual properties required by a fuzzy inference model